Hydrographic Regions and Basins

Eureka
		Region	Basin	Sq Miles	Acres	Hydrographic Basin/Sub-Basin Name	Counties	Nearest Cities	Designated
			Total	110,545	70,748,800	Square miles/acres
	[4] HUMBOLDT RIVER REGION (Hydrographic Region 4)
	51	4	49	314	200960	Elko Segment	Elko; Eureka	Elko	Yes
	52	4	50	223	142720	Susie Creek Area	Elko; Eureka	Carlin	Yes
	53	4	51	396	253440	Maggie Creek Area	Elko; Eureka	Carlin	Yes
	54	4	52	61	39040	Marys Creek Area	Eureka; Elko	Palisade; Carlin	Yes
	55	4	53	1002	641280	Pine Valley	Eureka; Elko	Carlin	Yes
	56	4	54	752	481280	Crescent Valley	Eureka; Lander	Beowawe; Crescent Valley	Yes
	61	4	59	588	376320	Lower Reese River Valley	Lander; Eureka	Austin; Ione	Yes
	62	4	60	94	60160	Whirlwind Valley	Eureka; Lander	Beowawe; Dunphy	Yes
	63	4	61	544	348160	Boulder Flat	Eureka; Lander; Elko	Beowawe; Battle Mountain	Yes
	64	4	62	444	284160	Rock Creek Valley	Elko; Lander; Eureka	Battle Mountain	Yes
			Total	16,843	10,779,520	Square miles/acres
	[10] CENTRAL REGION (Hydrographic Region 10)
	149	10	138	595	380800	Grass Valley	Lander; Eureka	Austin	Yes
	150	10	139	868	555520	Kobeh Valley	Eureka; Lander	Eureka	Yes
	151	10	140A	529	338560	Monitor Valley/Northern Part	Nye; Lander; Eureka	Austin	No
	163	10	151	444	284160	Antelope Valley	Eureka; Nye	Eureka	No
	164	10	152	17	10880	Stevens Basin	Eureka	Eureka	No
	165	10	153	752	481280	Diamond Valley	Eureka; Elko; White Pine	Eureka; Austin	Yes
	166	10	154	801	512640	Newark Valley	White Pine; Eureka	Eureka	No
	167	10	155A	591	378240	Little Smoky Valley/Northern Part	Nye; Eureka; White Pine	Eureka	No
			Total	46,783	29,941,120	Square miles/acres